Bauxite Residue Valorization

Bauxite residues are the solid by-product of the alumina production process. To this day, finding ways to utilize bauxite residues is one of the biggest challenges for the alumina industries, which for the most part remain untapped.

Metlen, among the world leaders, for more than a decade, invests in research aimed at utilizing bauxite residues as a source of recovery of basic metals, including iron and aluminum, but also rare earths, such as scandium. At the same time, it strengthens the efforts for the use of bauxite residues as an additive in other industrial applications, such as in the production of cement and construction materials, for example as an additive in ceramics and in the production of lightweight materials.

SCALE

Production of Scandium compounds and Scandium Aluminum alloys from European metallurgical by-products https://www.scaletechnology.eu/

ENSUREAL

Integrated cross-sectorial approach for environmentally sustainable and resource-efficient alumina production. https://ensureal.com/

SIDERWIN

Development of new methodologies for industrial CO2-free steel production by electrowinning https://www.siderwin-spire.eu/

RemovAL

Removing the waste streams from the primary Aluminiumproduction and other metal sectors in Europe https://www.removal-project.com/

BIORECOVER

Development of an innovative sustainable strategy for selective biorecoverof critical raw materials from Primary and Secondary sources https://biorecover.eu/

RIS-RESTORE

Evaluation of Red Mud Tailings in the ESEE region http://ris-restore.zag.si/

INCO-Piles

International consortium to recover CRMs from stockpiles/tailings targeting RIS https://site.unibo.it/inco-piles-2020/en/project

ReActiv

Creation of a novel sustainable symbiotic value chain, linking the by-product of the alumina production industry and the cement production industry. The main goal is the industrial residue activation for sustainable cement production https://reactivproject.eu/

REEScue

Integrated process for the recovery of Rare Earth Elements and Scandium from Bauxite Residues https://reescue.com/

SMART-G

Smart Geopolymers; development, production, and demonstration of light weight, fire resistant components for the construction industry

MudFire

Red mud utilization for development of refractory building materials

HARARE

Hydrogen as the reducing agent in the recovery of metals and minerals from metallurgical waste  https://h2020harare.eu/

SCALE UP

Scaling up Scandium production from European industrial residues